package com.project.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 登陆拦截器
 */
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //得到登陆用户
        Object obj = request.getSession().getAttribute("loginUser");
        if(obj == null){//没有登陆，回到登陆页
            response.sendRedirect("/login.html?errorInfo=noland");
            return false;
        }

        return true;
    }
}
